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/**
* @file audioengine_fmod.h
* @brief Definition of LLAudioEngine class abstracting the audio
* support as a FMOD 3D implementation
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_AUDIOENGINE_FMOD_H
#define LL_AUDIOENGINE_FMOD_H
#include "llaudioengine.h"
#include "lllistener_fmod.h"
#include "llwindgen.h"
#include "fmod.h"
class LLAudioStreamManagerFMOD;
class LLAudioEngine_FMOD : public LLAudioEngine
{
public:
LLAudioEngine_FMOD();
virtual ~LLAudioEngine_FMOD();
// initialization/startup/shutdown
virtual bool init(const S32 num_channels, void *user_data);
virtual std::string getDriverName(bool verbose);
virtual void allocateListener();
virtual void shutdown();
/*virtual*/ bool initWind();
/*virtual*/ void cleanupWind();
/*virtual*/void updateWind(LLVector3 direction, F32 camera_height_above_water);
#if LL_DARWIN
typedef S32 MIXBUFFERFORMAT;
#else
typedef S16 MIXBUFFERFORMAT;
#endif
protected:
/*virtual*/ LLAudioBuffer *createBuffer(); // Get a free buffer, or flush an existing one if you have to.
/*virtual*/ LLAudioChannel *createChannel(); // Create a new audio channel.
/*virtual*/ void setInternalGain(F32 gain);
protected:
static signed char F_CALLBACKAPI callbackMetaData(char* name, char* value, void* userdata);
//F32 mMinDistance[MAX_BUFFERS];
//F32 mMaxDistance[MAX_BUFFERS];
bool mInited;
// On Windows, userdata is the HWND of the application window.
void* mUserData;
LLWindGen<MIXBUFFERFORMAT> *mWindGen;
FSOUND_DSPUNIT *mWindDSP;
};
class LLAudioChannelFMOD : public LLAudioChannel
{
public:
LLAudioChannelFMOD();
virtual ~LLAudioChannelFMOD();
protected:
/*virtual*/ void play();
/*virtual*/ void playSynced(LLAudioChannel *channelp);
/*virtual*/ void cleanup();
/*virtual*/ bool isPlaying();
/*virtual*/ bool updateBuffer();
/*virtual*/ void update3DPosition();
/*virtual*/ void updateLoop();
protected:
int mChannelID;
S32 mLastSamplePos;
};
class LLAudioBufferFMOD : public LLAudioBuffer
{
public:
LLAudioBufferFMOD();
virtual ~LLAudioBufferFMOD();
/*virtual*/ bool loadWAV(const std::string& filename);
/*virtual*/ U32 getLength();
friend class LLAudioChannelFMOD;
void set3DMode(bool use3d);
protected:
FSOUND_SAMPLE *getSample() { return mSamplep; }
protected:
FSOUND_SAMPLE *mSamplep;
};
#endif // LL_AUDIOENGINE_FMOD_H
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